28993044031632 has 160 divisors (see below), whose sum is σ = 83992067913600. Its totient is φ = 9574794957312.

The previous prime is 28993044031619. The next prime is 28993044031681. The reversal of 28993044031632 is 23613044039982.

28993044031632 is a `hidden beast` number, since 2 + 8 + 9 + 9 + 30 + 440 + 3 + 163 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 677433658 + ... + 677476454.

It is an arithmetic number, because the mean of its divisors is an integer number (524950424460).

Almost surely, 2^{28993044031632} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28993044031632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41996033956800).

28993044031632 is an abundant number, since it is smaller than the sum of its proper divisors (54999023881968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28993044031632 is a wasteful number, since it uses less digits than its factorization.

28993044031632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57310 (or 57298 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 54.

The spelling of 28993044031632 in words is "twenty-eight trillion, nine hundred ninety-three billion, forty-four million, thirty-one thousand, six hundred thirty-two".